The QMetaObject::invokeMethod doesn't have compile-time checking for function names. There is also an overhead in specifying the member function by a string since a lookup and string matching is performed for every call.

One solution is using the signal-slot architecture, but this enforces wrapping each caller code in a QObject class to be able to emit that signal.

I wonder if there is anything similar to the new QObject::connect PMF syntax for invoking a method that provides compile time checking and possibly reduce the cost of invoking.